4312204321 has 4 divisors (see below), whose sum is σ = 4312461312. Its totient is φ = 4311947332.

The previous prime is 4312204313. The next prime is 4312204357. The reversal of 4312204321 is 1234022134.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1234022134 = 2 ⋅617011067.

It is a cyclic number.

It is not a de Polignac number, because 4312204321 - 2³ = 4312204313 is a prime.

It is a super-2 number, since 2×4312204321² = 37190212212102142082, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4312204292 and 4312204301.

It is not an unprimeable number, because it can be changed into a prime (4312204121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101425 + ... + 137518.

It is an arithmetic number, because the mean of its divisors is an integer number (1078115328).

Almost surely, 2^4312204321 is an apocalyptic number.

It is an amenable number.

4312204321 is a deficient number, since it is larger than the sum of its proper divisors (256991).

4312204321 is a wasteful number, since it uses less digits than its factorization.

4312204321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256990.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 4312204321 is about 65667.3763827976. The cubic root of 4312204321 is about 1627.6703167275.

Adding to 4312204321 its reverse (1234022134), we get a palindrome (5546226455).

The spelling of 4312204321 in words is "four billion, three hundred twelve million, two hundred four thousand, three hundred twenty-one".